A star of apparent magnitude 13.0 lies 600 pc from Earth. If interstellar absorption results in...
A star lying 35 pc from the Sun has proper motion of 0.6 ′′/yr . If the star's spectral lines are observed to be redshifted by 0.03 percent, calculate the magnitude of its three-dimensional velocity relative to the Sun. Express your answer using two significant figures and include the appropriate units.